Type1a supernovae as evidence for an accelerating universe

AI Thread Summary
Type Ia supernovae are crucial evidence for the accelerating expansion of the universe, as illustrated in the referenced graph. The graph demonstrates the relationship between distance and redshift, highlighting how supernovae observations indicate a faster rate of expansion than previously expected. The blog post linked provides additional context on Type Ia supernovae and their role in cosmology. Understanding this graph is essential for grasping the implications of supernovae data on the universe's expansion. Overall, Type Ia supernovae significantly contribute to our understanding of cosmic acceleration.
Astronomy news on Phys.org
I've posted a blog relating to type 1a supernovae and the accelerating cosmos-

https://www.physicsforums.com/blog.php?b=166

While it doesn't explain the diagram directly, it might go towards helping you understand it better.

Steve
 
Last edited by a moderator:
TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
Thread 'Could gamma-ray bursts have an intragalactic origin?'
This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows: 1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
This hypothesis of scientists about the origin of the mysterious signal WOW seems plausible only on a superficial examination. In fact, such a strong coherent radiation requires a powerful initiating factor, and the hydrogen atoms in the cloud themselves must be in an overexcited state in order to respond instantly. If the density of the initiating radiation is insufficient, then the atoms of the cloud will not receive it at once, some will receive it earlier, and some later. But then there...
Back
Top